Khan Academy
Khan Academy: Geometry: Language and Notation of Basic Geometry
Explains terms and notation of basic elements of geometry. [12:57]
CK-12 Foundation
Ck 12: Elem Math: Overview of Rectangles Squares Circles and Triangles
[Free Registration/Login may be required to access all resource tools.] The video gives a quick overview of 4 basic shapes: square, rectangle, circle, and triangle. Real world examples of each are also provided and briefly discussed
Virtual Nerd
Virtual Nerd: What Is an Image?
A new figure created after a transformation is an image. View examples of images in the following tutorial. [3:39]
Khan Academy
Khan Academy: Introduction to Euclidean Geometry
In this video students gain an understanding of basic ideas in geometry and how we represent them with symbols.
Khan Academy
Khan Academy: Geometry: Lines, Line Segments, and Rays
Compares qualities of line segments, lines, and rays. Practice problems available. [3:38]
Khan Academy
Khan Academy: Introduction to Euclidean Geometry: Lines, Line Segments, and Rays
In this video the students explore the difference between lines, line segments, and rays.
Sophia Learning
Sophia: When Planes Intersect
Determine what happens when two or more planes intersect. Assess learning with a quiz.
Sophia Learning
Sophia: Perpendicular Lines
In this video tutorial [2:10], perpendicular lines are defined and explained in this lesson. Take a quiz to assess learning.
Math Antics
Math Antics: Points, Lines, and Planes
Gain a basic understanding of points, lines, and planes by watching this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [7:53]
PBS
Pbs: Measurement and Geometry: Finding the Area of Irregular Figures
Video explains area which is the measure of the surface inside a flat figure and is measured in square units.
PBS
Pbs: Measurement and Geometry: Angles: Vertical and Congruent
Vertical angles lie diagonally opposite one another at an intersection and are always equal in measure. This makes them congruent.
PBS
Pbs: Measurement and Geometry: Angles: Right and Obtuse
Angles are measured in degrees, and are classified as right, obtuse, acute, or straight.
PBS
Pbs: Measurement and Geometry: Angles: Naming
This video demonstrates the three ways for naming an angle: by its vertex, by the three points of the angle, or by a letter or number written within the opening of the angle.
PBS
Pbs: Measurement and Geometry: Ged Formulas: Isolating the Variable
Sometimes problems will ask you to solve for a "missing" dimension. This can be done using an algebraic strategy known as isolating the variable.
PBS
Pbs: Measurement and Geometry: Finding Volume
video segment explores how to find volume using the formula Volume = length x width x height.
PBS
Pbs: Measurement and Geometry: Finding Area
Area is the measure of the surface inside a flat figure and is measured in square units.
Sophia Learning
Sophia: Midpoint of a Line Segment: Lesson 4
This lesson explains the definition, location, and labeling of midpoints. It is 4 of 6 in the series titled "Midpoint of a Line Segment."
Sophia Learning
Sophia: Midpoint of a Line Segment: Lesson 3
This lesson explains the definition, location, and labeling of midpoints. It is 3 of 6 in the series titled "Midpoint of a Line Segment."
Sophia Learning
Sophia: What a Plane Is
This lesson explains the term plane. Student can watch a video tutorial and then take an online quiz.
Sophia Learning
Sophia: Midpoint of a Line Segment: Lesson 2
This lesson explains the definition, location, and labeling of midpoints. It is 2 of 6 in the series titled "Midpoint of a Line Segment."